Multiple Cron Triggers

Set multiple Cron Triggers on three different schedules.

Last updated Sep 4, 2026 If you want to get started quickly, click on the button below.

This creates a repository in your GitHub account and deploys the application to Cloudflare Workers.

export default {
    async scheduled(event, env, ctx) {
        // Write code for updating your API
        switch (event.cron) {
            case "*/3 * * * *":
                // Every three minutes
                await updateAPI();
                break;
            case "*/10 * * * *":
                // Every ten minutes
                await updateAPI2();
                break;
            case "*/45 * * * *":
                // Every forty-five minutes
                await updateAPI3();
                break;
        }
        console.log("cron processed");
    },
};

interface Env {}
export default {
    async scheduled(
        controller: ScheduledController,
        env: Env,
        ctx: ExecutionContext,
    ) {
        // Write code for updating your API
        switch (controller.cron) {
            case "*/3 * * * *":
                // Every three minutes
                await updateAPI();
                break;
            case "*/10 * * * *":
                // Every ten minutes
                await updateAPI2();
                break;
            case "*/45 * * * *":
                // Every forty-five minutes
                await updateAPI3();
                break;
        }
        console.log("cron processed");
    },
};

import { Hono } from "hono";

interface Env {}

// Create Hono app
const app = new Hono<{ Bindings: Env }>();

// Regular routes for normal HTTP requests
app.get("/", (c) => c.text("Multiple Cron Trigger Example"));

// Export both the app and a scheduled function
export default {
    // The Hono app handles regular HTTP requests
    fetch: app.fetch,

    // The scheduled function handles Cron triggers
    async scheduled(
        controller: ScheduledController,
        env: Env,
        ctx: ExecutionContext,
    ) {
        // Check which cron schedule triggered this execution
        switch (controller.cron) {
            case "*/3 * * * *":
                // Every three minutes
                await updateAPI();
                break;
            case "*/10 * * * *":
                // Every ten minutes
                await updateAPI2();
                break;
            case "*/45 * * * *":
                // Every forty-five minutes
                await updateAPI3();
                break;
        }
        console.log("cron processed");
    },
};

Test Cron Triggers using Wrangler

The recommended way of testing Cron Triggers is using Wrangler.

Cron Triggers can be tested using Wrangler by passing in the --test-scheduled flag to wrangler dev. This will expose a /cdn-cgi/local/scheduled route which can be used to test using a HTTP request. To simulate different cron patterns, a cron query parameter can be passed in.

npx wrangler dev --test-scheduled

curl "http://localhost:8787/cdn-cgi/local/scheduled?cron=*+*+*+*+*" # Python Workers

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